/ əˈmiːliəreɪt; NAmE / verb
[ vn ] ( formal ) to make sth better :
Steps have been taken to ameliorate the situation.
► ameli·or·ation / əˌmiːliəˈreɪʃn; NAmE / noun [ U ]
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WORD ORIGIN
mid 18th cent.: alteration of meliorate (of the same meaning), influenced by French améliorer , from meilleur better.